The Network Analyzing And Inspecting System Of Wireless Local Area Network

Wireless Local Area Network (WLAN) is developed more and more deeply, and is grown up recently, The WLAN products are applied to public location, such as campus, company, airdrome, coffee house, etc, being provided high speed wireless Internet assess. Whereas, due to the research of WLAN application in our country is later than IEEE, if being continued to use existed international standard, the problem of security will be brought, so WLAN Authentication and Privacy infrastructure has been instituted by China government to protect national security and information safety. But it is delayed last year by some reason, WAPI of the China national standard should be converted to other corporation and development.An applied project of WLAN network protocol analyzing and detection is introduced in this paper, and the system of WLAN network protocol analyzing and detection has been brought into realization in the development environment of Beijing P&T Telephone Equipment Factory.At first, the current development, application and the key technology of WLAN have been expatiated in this paper, so the theory support and application of WLAN network protocol analyzing and detection are provided. Secondly, the architecture of WLAN network protocol analyzing and detection is detailed, and the system environment, hardware constitutes and software construct are introduced in this chapter. Next, the realization of detected network adapter is be introduced, and the related WLAN standard and the technology of capturing network data have been analyzed in this chapter, the protocol stack and network driver are modified, the application programs of Sniffer and commander are embedded in, so the network adapter will be commanded and data will be captured. And then the communication protocol between the network...